Hand warping device for hand looms



1948;. P. FLORJANCIC ET AL 2,447,402

HAND WARPING DEVICE FOR HAND LO0MS Filed Dec. 7, 1944 '4 Sheets-Sheet 1 IIIIIIIIIIIIIIIIIIIIIIlllllllll nu IIIIIlllllllllIIIIIIIHIIIIIIIIIIIIIIII Aug. 17, 1948;. P. FLORJANCIC ET AL HAND'WARPING DEVICE FOR HAND LOOMS 4 t heet 2 Filed Dec. 7, 1944 Aug. 17, 1948. P. FLORJANCIC ET AL. 2,447,402

: HAND WARPING DEVICE FOR HAND LOQMS Filed Dec. '7, 1944 4 Sheets-Sheet 3 45 FIG Patented Aug. 17, 1948 EetenFIoI-jancicaiid Emil Boral, Zurich, Switzer: land; as'slgnors'to Max Buc'h'er, Zurich; Sivitz land Appli'eal;ioml).eoember 7, 1944; Serial Noe-567305.92 In Switzerland August 6, 1943 means which serve for mounting the Warpebeam.

therein and are providedwith a.. drive ,for rotating the warp. beam .forlthe. purpose: oilwindirig said threads on saidibeam.

This arrangement j permits...of,jwinding threads on the warp beamr-inthe loomein theirequired. 5.,

manner for said-threads th'en tobeusedioriorm= ingthe warp of the loom Dueto thisiarrangew ment'thehand loom. Weaver-is venalo'ledeto per. form prior. to. the .weaving. the...necessary,. beam ing operation, that is, ,beaming;.direct=.on. to the Weaver's-beam himself,- soqthat-theefield of opera, tion ofthe: handloom...weaver. is accordingly, enlarged, which is. highly. appreciated particularly;

in. regard to home Work}. .thisekindc of liworking he: a ing imnortantfrom. the point of.view'r of: ma 5 tional economy especially. in regions-having littleorno textile-industry. at all. Therwarpthread-x to. bedelivered by, the thread supply fspoolsmay; be subjected to a pretreatment for influencing itse propertiesito any requiredorlsuitablerextente The subject matter. of the presentrinventionz.-is z illustrated partly schematically in 1 the: accompanying, drawingsin connection with a dismount; ablehand..]oom ,,-.inwhich;

Fig; 1. shows an elevation ofi=therhand looms,

Fig. 2 is a part top plan view-.o-t Fig; 1;. v

Fig. 3ris.-a.--iview-sof: the upperrpart ofsthe loom frame. includingthe guiding; member: and? the; warp 'beam; saidtwoeparts appearing girrxsection;

Fig. 5.: is a; perspective; View: indicating; the; course .of :thee threadibeingxbeamed Fig; 6. is asperspectivezview :representmg: the; bearing means for; the: mounting: of i' the; warm eam;

Figs 7 isa-alargersrscaleasectionalLviemr ofrfaisupa port-eon the loomirame-zwithzthe:shuttle aracezde a tachabl-yq 'secu-red'zthereto';

Fig. 8 is a perspective View of a rack whichiisz; assembledsfrom loom 1f ramerp ostssand'iserves ifr producing, carpets:- knottin ework Eig 9 (is a sectional:viewofiparts: of said;:raek-;.;

Fig: .IOJshoWsL-sa longitudinal .sectiorrzofatmodi' fiediauidememher imthee formaoiian;extenstblee comb Fig 11.is a,,view of;an.arrangement.including the vex'tensiblecomb.e'uid otheruparts required .f or effectingthe beaming ,ofthewar'p, and;

Fig; 12f'iscafllargerqscaleview of Ta threadcjbralie. in operative. position;,.

As shown in Figs. 1 and-2; in the-hframeofjthet loom. ontwo lower ,rods. l .andZ extending ,parallel toeach other, twocairiers 3ll/V1HGH eXtEI1dtIjalfiS-n versely. of I said .rodsflare supportedland have; ar; rangedthereona pivot 51313; meansLoLbearingsfi; Four .liftingcamsfi, 11' .STandBI which are united; into; a b1ock,.-are .fixedly..mounted 'onrthe. Shaft. .521 for. common rotation therewith... With each. o the four. lifting vcams,.iilto' Qtwhithhaye aiormi similar to..a-.quadrant;aiid.1are alll'relatively offset. at. angles atthe center. 01903 iridividuallactuat' ing rods I I .toM respectively cooperate.

The four. actuating rod's .l I Ito. H dr providedgare swingably;mountediafioneof their ends on .a. .b'ol,t. l 5;,which is. arranged 'iricor'nmon .with .saidgrods; and is secured torboth carriers;3;,. Theother'ends', oLsaid .rods" are each connected by meansofja. cord .drlive-r 3' with one. of four; shafts; [110 23; respectively, in known manner.

Each ofisaidpshaftsrl Ltd 2B2Iwhich, in 'a,..-knoWn manner, carryrthe healds". by means ofjtwo. shaft staves, carries. on .bioth. ofjitsehds a, stationary supporting. bar. f o'rinter'engagcment with; a tubular. guidethe lower end of which is..closed. and? which houses .a. .he1ical.;s1oring, whereby the. two. shafts. are..resilientlysupportedl. Theifour guide; tubes 24 that .areisitu'atedat adjacent ends of.;the.. shafts ll to .20.. are weldedtoge'therwith.a common connectingiodllilofitherloom.fi'ame. By 21, theshuttle race of theslay isreierred'to, which is. swingably, arrangedao'n lower. connectingflrods 44 of,the..lcom.frame by means.of.,slay swords 23; inia mannerrknownhper.serandlcarries the, reed. 2Z9. Thenumerals Biliand 3.lldenote.w.arp threads arriving from thewa'rnbeam 32;. Tliecloth beam. is referred teale331.

On the-..- shaft..5.' carryingthewcam ,discs, SLLto e, 9 is further arranged a. sprocket L3 lither'im of which; is, securedtoia hub portion which is keyed. to .the. pivot, 5 Between the two wheel parts. balls ,are included so as--,-to: form-together; with. said parts aunidireoti-onal coupling, that is; aifreewheelnhub, arrangement. Aboutethe rim hi; the, sprocket 34';

passeseaichain 3'l: one-.endl.of-.whioh isattached.

accordingly turned by action of the chain 3''! and. l"

consequent stressing of the spring 38, in consequence whereof, for example, the shaft associated with the cam disc 6 is moveddownward against spring influence on actuation of said' cam. Relieving of the pressure exerted on the pedal lever 39 results in restoring said lever into position of rest under the influence of the tension spring 38.

When the pedal lever 39 is depressed anew the The pivot has performed one revolution afterhaving been controlled four times. If a lesser or greater number of cam discs is provided the throw of the pedal lever 39 is accordingly adjusted .to greater. or smaller range. Naturally, the angular ranges of the cam discs about the pivot 5, that is, said ranges of the cam discs relatively to each other, may be adjustable. The point at which the tension spring 38 is attached to the loom frame may, if desired, be adjustable, for example by means of a sliding member.

The possibility of moving all of the shafts or groups of shafts as a whole through the intermediary of a single pedal lever simplifies the work of the attendant person to a great extent compared with the conventional mode of using both feet for the pedal lever control so that in the event that more than two pedal levers are provided the lever control even requires the feet to be dislocated. The heald shaft motion according to the present invention has the effect above all to relieve the attendant person so that said person is enabled to attend to the weaving operation proper with more concentration of mind and economy of physical strength in consequence whereof the efficiency of weaving is increased.

The lower rod l serving for carrying the heald shaft motion interconnects two corner posts 45, 45 of the loom frame. An upper connecting rod 41 serves the same purpose. In a similar manner the further corner posts 48, 49 are united by means of a lower and an upper connecting rod 50 and 5| respectively. Transversely of these connecting rods extend the upper and the lower connecting rods 25 and 44 respectively which interconnect the corner posts 45 and 48. In a similar manner the two corner posts 46 and 49 are interconnected by means of an upper and a lower connecting rod. The said eight connecting rods are in form of tubes into each end of which an extension bolt 52 is inserted and held by a cotter pin 53 extending through transverse openings in said tubes and bolts. Each extension bolt 52 protrudes through a cross bore provided in the respective corner post of the loom frame. A nut 54 screwedto the free end of the extension bolt 52 serves for engagement with the corresponding corner post.

By detaching the described connections the 4 four corner posts 45, 45, 48 and 49. can be isolated. The two carriers 3 being correlated to the shaft motion and which are pushed on the lower connecting rod I by means of forked ends can also be detached from said rod on the removal of cotter pins 55 as well as detached in a similar manner from the rod 2 on the removal of cotter pins 55. This rod 2 can in turn be retracted from engagement with forked bearing portions on the rods 44 on the removal of cotter pins 51. Also the connecting bolts on the swords 28 of the slay 21 can be removed from engagement with the rods 44 for the purpose of detaching the connection between the slay 21 and the rods 44.

In consequence thereof the loom frame can be dismounted s'o'thatthe corner posts 45, 45, 48

and 49 form individual parts. The same applies to all the connecting rods mentioned above. Due

to this provision the loom can be stored away during the time of unuse with relatively small space requirement. This is obviously also of great advantage for the transportation of the loom. For the same purpose the shafts I! to 29 can be detached from the guide tubes 24. The swords 28 of the slay can be fastened to the shuttle race 2? in detachable manner so that the slay can in turn be separated into three parts. Also the reed 29 is detachably connected to the shuttle race 27 and the shaft motion itself is also separable into several parts.

As shown in Figs. 3 and 4 several carrier bars 58 are mounted on the upper connecting rod 4'! by means of forked connecting elements so that said bars can be dismountedon the removal of cotters 59 also. The carrier bars 58 are each equipped with a row of bolts for the reception of thread supply spools to be donned thereon. With each bolt a thread guide BI is associated the thread eyelets of which only are shown in Fig. 4. The threads unwinding from the spools 69 are leased in a group through the reed 29 being connected with the shuttle race 21 of the slay in order to constitute the warp. These threads then pass about the rounded guide surface of a lower attachment member 62 which is detachably secured to the part 21, whereupon the thread group A is threaded through the reed 29 at another reed portion, as shown in Figs. 4 and 5 and is then placed on the warp beam 32 and fastened by means of its end portion to said beam through the intermediary of, for example, a rail which is depressibly arranged in the beam circumference. For the work then to be carried out the shuttle race 2'! of the slay has been detachably secured to the corner posts 48, 49 of the loom frame by screw means.

The warp beam 32 is mounted in axle stubs 63, 66 sustained by shanks 64 of a supporting stirrup which is displaceably guided in an upper and a lower guide groove provided in the shuttle race 21 by means of two cross members 65. The axle stub 66 serving as a mounting for the warp beam 32 is in form of a screw spindle which can be turned by a removable hand crank 66' on the square end portion of said spindle. In turning this crank the axle stub 66 shifts axially in a bearing sleeve 61 which is provided on the associated stirrup shank 64, thereby moving along the warp beam 32.

In consequence thereof a windingB of sub stantially frusto-conical shape is built up on the warp beam 32 by the group of threads A in course of being wound on. After the diameter of this winding has reached a certain extent the thread is severed, whereupon a second similar winding enemas is produced in similar manner at thecsiderofithe first windinggand so :forthtuntil .as..=manyxthrea'ds have. been-.appliedlto the warp beam -as'required': Each time after: a: thread iwinding: :has been pro-- duced .on :thexwarp beam- 32 this beam is axially shiftedto the required: amount by; accordingly shifting the" supporting; stirrup 64; Sirlongitudinal-ly ofthe.:shuttle: race-21'], so that the fresh winding to be elTected is'placedzcollaterally of the previously produced winding exactly as required. The: warp beam 32- is thus conically. increased. commensurate with the: frusto-conical shape-f the windings at that beam end at which the-winding. operation for producing thread. windings has begun, whereby to. the first. winding. anappro'e priatezbearing areauon the warp beani hasbee-n given. The first winding ;is their. overlain .-by the second winding on that side which.has-beendeft free in.- performing the former winding and-so forth; so.-that the windings holdeach other,- that is removed from the. supportingrstirrup 64: i=5: and.

is-mountedinthe bearingsprovidedfor thewarp, b'eainon the-twocorner posts-A5, shot :the. loom.-v Thereuponr the supporting stirrup. 64 6 5; is re: tractediromthe shuttlerace 22! said raced-L is joined with the swords 28 after the attach.

menti5-2-ihas1beenrremoved by which means the slay is assembledagain. The threads applied to the warp beam 32 are then threaded through the healds of theihealdnshafts'all to'zll and through the reed 29 in the manner prescribed, thereby toputtheioom in condition for operation,

In order to provide for the shuttle race z'lto be detachably.connectedtothetwo corner posts 48, 49 of the loom frame, on both ends of the shuttleerace 27 a bolt 99 isrfast'ened by means of? a=cotter=pini98, as shown inzFig-sfl, forath'ewreceptionof.-.. which a crossbore is arrangediin the respective corner postsJi-d-andid Aknutim screwed toxthe connecting bolt 69 permits- 0f tightening-the bolt 89 so as to'fi'rmly secure; the shuttle race -21 to the said corner posts.

From the explanations given above it follows without any furthercomment that the described loom--.is reduced in weight to :a relatively greati extent, particularly, due .10.} the; employment of connecting. tubes. Further: itz-wi'll'ibe seerr that the dismounting and assembling of the loom can be efiected without difficulty so as to be easily performable. The swords 28 of the slay are preferably made of pipe material so as to keep down the weight of the slay and permitting of easily moving the slay back and forth.

The four corner posts 95, 4'6, 49 and 39 provided for forming the loom frame are joined to each other in pairs as shown in Fig. 8 to which end in the plane end races of the corner posts bores for the reception-of pegs H are provided. Consequently, pairs of posts 45, 46 and 48, 49 of corresponding lengths are formed the rounded ofi ends of the parts 95, 48 of which are inserted in corresponding recesses in two base pieces 12 and are secured to said pieces '12 in vertical position by tap bolts F3. The connection between said parts and the base pieces is strongly stiffened by braces M which are detachably fastened to the upper parts 38, 19. Since the lower and upper parts of the two posts 45, 4B and 49, 49 are interconnected by connecting rods I and 41 respectively a rigid framelike standard is thus obtained. In said standard a lower roller and g anr-upp'er; rollera'lBw are accommodated whereby: a device is'formed Which serves forproducin'gc car-- P ts y'lmot-worh. To-thisl en'drthea rollers: 15 and I 6 are instrumental: by: receiving the longit tudinal threads to be used as indicated-inchaim dotted lines. The rack-described :can be. dismountediagain veryteasilm aszwill be readily seen.

As showrnin Figs. .2- and. 4 the cornerpost's of the 100m are. made from three 7 plies .of boards; wh-ic'hzi x not: visible in Fig; 8.. Natural-1y these cornerrposts scan" consist of an integral piece: as well;

Due. to the fact that the slay: is supported or mountedatiits'bottom portion and further'that plJerm-cunts are avoidedla loom which is devoid' of' such mounts and has inherent a'dvan' tages. typicalforthiskind of looms is obtained;

For" the purpose of "facilitating the leasingv of threads, that is,-the-be.aming work the employ mentofiian extensible leasereed of the k-in'dshown intf lgs. i1'0'.to:l2 as a g-uide means for the threads' to: be wound oii of the: thread supply spool-s and wound on; the warp. beam lends itselfas of pa'rtic-ular'a'dvan-tage.

As sliowni-in' 121; arrextensibleleasereed" 89,.lease' rods 8|; 82 a- -thread brak e- 8 3"and" a reed" 89: are: successively arranged with the lease reedi extiin advan cerof the warp beam SE-ii consideredi: with respect to a the: direction or move ment otzthe threads'arrivingirom the threadsup ply? spioo'ls zvialthreadr guides The parts B'Bto Bil are advantageouslysupported by a-- common mounting (not shown) which is= adaptedto' be' detachably: secured it-o the loomframe; In this WZ-YIthB fiJSXCS -ZiiP to 9 8 form together with their supporting means a self -centa-inedaccessory whichic'anibe attached to-thelo'om as a unit; and removed from: the l'oo'm again after use;-asre quilted? The-extensiblereed is provided with-two head pieces 9 6 8' i which' -ar'e rigidly'interconnected' by two tubes 99 B-B- that 'are-htted into 'two eyes of saidxpieces. each of-"these two tubes-9B, 39* being each provided with a longitudinal" slot 99 aspindle al er 92 each carrying ariglrt hand threadiiifi and a lefthand thread 99 1s accom modated'i Din-each thread of both of said spin-- dles. 9 I5 92 a nu t 95 is arranged which intereng'ages bymeans of-la projection 99 with the longitudinal slot 99' of the respective tube 88 01-289 andi'isth'u's prevented-from rotating; On theftwo -nuts95 carried by the same spindle 9! 0117592 abuts'b'y-means of' 'the-adjacent end aheli cal spring 91 or 98 both of which surround'the' respective spindle and are maintained stressed continually.

In the helical springs '91, 98 the dents 99 of the reed are anchored by means of eyelets in such a number as to allow of dividing the dents uniformly to the convolutions of the helical springs as shown in Fig. 1. On the end of the screw spindle 92 projecting beyond the head piece 85 a round adjusting disc I 99 is fastened with the toothed rim of which cooperates a spring locking arm l9! which in turn is fastened to the head piece 86. In an all around closed chamber- I02 of the head piece 85 a chain drive IE3 is provided which positively operatively interconnects the two screw spindles 9|, 92.

The threads payed out by the supply spools are threaded through between the dents 99 of the extensible lease reed in the required manner. The division of the dents 99 can be adjusted within the limits likely to arise in actual practice dependent upon requirements. This is efiected by means of the rotatable adjusting disc I which can be controlled by hand against the resistance opposed thereto by the locking arm IOI which secures the disc I00 in each position of adjustment.

In turning the setting disc I00 in one or the other direction the two screw spindles 9|, 92 are correspondingly rotated andthe screw nuts 85 accordingly displaced towards or away from each other. Consequently the stressing of the helical springs 91 is increased or decreased as the case may be so that the dents 99 being guided in the longitudinal slots 90 of the respective tubes 88 or 89 are moved towards or away from each other accordingly and the dent division is correspondingly decreased or increased. The nut 95 is provided with a point I 04 for cooperation with a division I05 for continually visibly indicating the length of division of the dents 99 as set.

Between the lease reed 84 and the lease rod 82 being instrumental in forming the lease the warp threads pass through the thread brake 83. This brake is provided with two parallel round bars I06 which are interconnected at both of their ends by a separate terminal plate I01. The bars [06 form with the plates III! a frame which is rotatably adjustably arranged by means of pivot pins I08 one of which is centrally arranged on either terminal plate I01. Each of the two pins I08, which are coaxially arranged, is received in a bearing (not shown), these bearings being provided on the supporting means mentioned in the opening paragraph.

As shown in Fig. 11, the frame I06, III! the angular position of which is adjustable by means of an auxiliary device (not shown) is in inoperative position so that the warp threads can freely pass between the two relatively opposed round bars I06. If the frame I06, I01 is rotated in the direction of the arrow shown to the required extent the round bars I06 contact with the warp threads so that these threads are tensioned more and more as the said frame keeps on rotating and their movement is eventually braked by action of the round bars I06. The braking frame I06, I01 can, for example, be moved into the position shown in Fig. 12, in which the warp threads contact with the round bars I06 along a stretch which is somewhat greater than half the circumferential length of said bars.

The accessories described for putting the warp threads in condition of use are not only of simple construction but can also be handled in convenient manner.

We claim:

1. In apparatus for performing warping operation, four corner posts forming a, frame, means releasably connecting the posts together whereby the frame is collapsible, a. support for warping spools mounted on said frame, a warp beam, one end portion of said beam being in the form of a screw threaded rod, a warp beam support on the frame, means engaging the screw threads of said rod, and means for rotating said rod and warp beam to wind on warp threads and to provide relative axial motion between said beam and the spool support.

2. In apparatus for performing warping operations four corner posts forming a frame, means releasably connecting the posts together whereby the frame is collapsible, a, support for warping spools mounted on said frame, a warp beam, a warp beam support on the frame, means for rotating and axially moving the warp beam relative to the spool support, a slay, attachment means provided on the frame at predetermined positions, a shuttle race, releasably attached to the slay and having attachment means for cooperating with the attachment means on the frame, whereby the shuttle race may be selectively secured at said different positions and whereby the shuttle race may be moved to position for guiding the thread during a warp winding operation.

PETER FLORJANCIC. EMIL BORAL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 242,987 Rowley June 14, 1881 396,281 Kvnett Jan. 15, 1889 605,507 Newcomb June 14, 1898 772,582 Rhoades Oct. 18, 1904 882,019 Reed Mar. 17, 1908 1,096,702 Fleischer May 12, 1914 FOREIGN PATENTS Number Country Date 3,391 Great Britain 1896 439,551 Great Britain Mar. 5, 1934 

